A new study published in Nature Mental Health has explored the relationship between a person’s gut microbiome and their ability to manage stress. The research, conducted by UCLA’s Goodman-Luskin Microbiome Center, found a strong link between a healthy gut microbiome and greater resilience in the face of stress.
The study involved 116 participants who were surveyed about their perceived resilience in the face of adversity. They also provided stool samples and underwent fMRI brain scans to examine activity in different brain regions. The results showed that the stool samples of more resilient individuals had less inflammatory bacteria and exhibited signs of robust integrity in their gut barrier.
The study’s authors suggest that this complex interrelationship between the gut and brain indicates that resilience benefits psychological, emotional, and cognitive function. The Connor–Davidson Resilience Scale (CDRisc) was used to score participants’ resilience, which measures five areas: personal competence, tenacity, faith in one’s instincts, positive acceptance of change, secure personal relationships, control, and spiritual influences.
The gut microbiome can regulate anxiety levels, and this study highlights a new connection with resilience. When the gut becomes inflamed, it may become less effective at holding on to and accessing nutrients, which can lead to various mental health disorders. Chronic inflammation can also affect brain function and emotional stability.
The gut and brain are connected directly through the vagus nerve, which acts as a “superhighway” for the gut to send short-chain fatty acids (SCFAs) to the brain. SCFAs play an important role in maintaining gut health and may have beneficial effects on brain function and mood regulation. They help promote the production of beneficial neurotransmitters such as serotonin and dopamine, which are crucial for optimal health, energy, and productivity.
To maintain a healthy gut microbiome, experts recommend a healthy diet, plenty of sleep, and physical activity. Consuming a diverse array of fiber-rich foods, such as fruits, vegetables, beans, legumes, and whole grains, may support a healthy gut microbiome. Including probiotic and prebiotic-rich foods, found in specific vegetables, can also help feed beneficial gut bacteria. Following a consistent and sufficient sleep routine and engaging in physical activity are equally important for gut and mental health.
